S
M
T
W
T
F
S
26
94°
75°
27
94°
78°
28
94°
79°
29
94°
78°
30
97°
79°
31
93°
79°
1
92°
78°
2
91°
75°
3
92°
74°
4
91°
76°
5
90°
75°
6
92°
74°
7
93°
76°
8
90°
75°
9
89°
76°
10
87°
75°
11
91°
76°
12
90°
75°
13
88°
76°
14
86°
76°
15
87°
73°
16
86°
72°
17
87°
75°
18
87°
76°
19
89°
76°
20
89°
74°
21
87°
74°
22
88°
76°
23
88°
76°
24
87°
74°
25
88°
76°
26
88°
74°
27
87°
72°
28
88°
75°
29
89°
74°
30
87°
76°
31
86°
75°
1
88°
75°
2
86°
74°
3
86°
75°
4
88°
74°
5
87°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Slidell
Slidell's August 2026 forecast shows daily high temperatures ranging from 86° to 97°, with overnight lows between 72° and 79°. The average high for August is 89° with an average low of 75°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Slidell. See also: September | October | November.
